When working in Scapple the keyboard shortcut for a new connected note (Ctrl-Cmd-Left/Right/Up/Down Arrow) works as advertised. So do the shortcuts for new note above and below (Ctrl-Opt-Cmd-Up/Down Arrow). What doesn't want to work for me are the shortcuts for new note left or right (Ctrl-Opt-Cmd-Left/Right Arrow). Nothing happens when I press these combinations. As far as I remember this has worked before. Could it be that this (rather unusual) keyboard combinations are used for something else in recent iterations of the operating system (I'm on High Sierra)?

Funny. Using CheatSheet, the only place I find where the shortcut is used is in Scrivener to adjust the first-line indent (Format>Stycke>Öka/minska indrag>Öka/Minska första radens indrag). But, also in Scrivener the shortcut doesn't deliver.

EDIT: Realise now that I referred to a beta-translation into Swedish, that do not belong in this forum

A utility called Magnet - a "window manager" app - that I'd more or less forgotten about as I don't use it, but still hadn't disabled uses the shortcuts. Once I had disabled Magnet, the relevant shortcuts worked as advertised in both Scapple and Scrivener